DESIGN AND DEVELOPMENT OF A POWER QUALITY MONITORING AND AUTOMATION SYSTEM USING CAPACITOR BANK FOR SMALL-SCALE INDUSTRY

Deny Nazarius Sirait Sirait

doi:10.23960/jitet.v13i3S1.7908

Authors

Deny Nazarius Sirait Sirait Universitas Pamulang

DOI:

https://doi.org/10.23960/jitet.v13i3S1.7908

Abstract Views: 28 File Views: 15

Keywords:

Capacitor Bank, Power Quality, Power Factor Correction, ESP32, PZEM-004T, MIT App Inventor

Abstract

Low power factor in small-scale industries results in energy inefficiency, increased power consumption, and higher operational costs. To address this issue, this study proposes a monitoring and automatic power factor correction system utilizing a capacitor bank controlled according to load demand. The system is built using an ESP32 microcontroller as the main controller, integrated with a PZEM-004T sensor for voltage and current measurements, and a 25 A Solid State Relay (SSR) for capacitor switching. Monitoring is facilitated through a mobile application developed using MIT App Inventor. The research methodology involves hardware and software design, system implementation, and performance evaluation. Experimental results demonstrate an improvement in power factor from 0.72 to 0.99, a reduction in apparent power from 2.18 kVA to 1.60 kVA, and a decrease in reactive power from 1.50 kVAR to 0.24 kVAR. The current draw was reduced from 10 A to 7.34 A, yielding estimated energy savings of 139.2 kWh or approximately IDR 201,102.24 per month. Sensor accuracy testing shows an average error of 0.40% for voltage and 1.13% for current. The proposed system enables small industries to enhance energy efficiency, reduce operational expenses, and monitor power quality via smartphone.

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References

T. Barlian, Y. Apriani, N. Savitri, and M. Hurairah, “Analisis Kapasitor Bank Untuk Memperbaiki Tegangan,” J. Surya Energy, vol. 4, no. 2, pp. 391–396, 2020, doi: 10.32502/jse.v4i2.2562.

J. Murianto, D. Febrianto, and F. Azmi, “Rancang Bangun Alat Uji Pada Perbaikan Faktor Daya Dengan Kapasitor Bank,” JESCE (Journal Electr. Syst. Control Eng.), vol. 4, no. 1, pp. 53–62, 2020. [Online]. Available: https://www.ojs.uma.ac.id/index.php/jesce/article/view/3995

T. R. K. Lestari, B. Nugroho, and R. Kristiyono, “Purwarupa Perbaikan Faktor Daya Listrik Otomatis Menggunakan Mikrokontroler Untuk Listrik Rumah Tangga Dan Home Industri,” Teknika, vol. 7, no. 2, pp. 84–92, 2021, doi: 10.52561/teknika.v7i2.147.

Y. Panggei, Y. R. Pasalli, F. Y. S. Paisey, and A. Rehiara, “Power factor correction for energy efficient at public hospital of Manokwari,” J. Innov. Mater. Energy, Sustain. Eng., vol. 1, no. 1, pp. 20–34, 2023, doi: 10.61511/jimese.v1i1.2023.33.

D. T. Laksono, R. Afrianti, M. W. Fatma, M. Prasafitri, and H. Alchudri, “Rancang Bangun Sistem Pemantauan Energi,” vol. 13, no. 1, 2025.

Nugroho and Mustaqim, “Studi kualitas daya listrik (power quality) di bangunan gedung xyz,” vol. 13, no. 2, 2025.

B. Nurdiyansyah et al., “Analysis of Electrical Energy Consumption in City,” J. Tek. Elektro dan Komput., vol. 12, no. 3, pp. 181–188, 2023.

F. Toba, V. A. Suoth, H. S. Kolibu, H. I. R. Mosey, As’ari, and D. P. Pandara, “Analisis Perbandingan Daya Listrik Saat Sebelum Dan Sesudah Variasi Kapasitor Pada Beban Listrik Rumah Tangga,” J. MIPA, vol. 13, no. 1, pp. 11–17, 2023, doi: 10.35799/jm.v13i1.48968.

O. R. Nadeak, R. Sinambela, and M. Manik, “Analisis Kualitas Daya Listrik Akibat Dampak Beban Nonlinear,” SINERGI POLMED J. Ilm. Tek. Mesin, vol. 5, no. 2, pp. 75–84, 2024, doi: 10.51510/sinergipolmed.v5i2.1664.

R. Ramadhan, Z. Saputra, and Surojo, “Rancang Bangun Perbaikan Faktor Daya Menggunakan Kapasitor Bank Berbasis Mikrokontroler Untuk Beban Rumah Tangga Dengan Daya Maksimal 900 W,” Pros. Semin. Nas. Inov. Teknol. Terap., pp. 287–293, 2021.

R. A. Dedzky and F. Atabiq, “Perbaikan Faktor Daya Pada Peralatan Listrik Rumah Tangga,” J. Appl. Sci. Electr. Eng. Comput. Technol., vol. 1, no. 3, pp. 23–29, 2020, doi: 10.30871/aseect.v1i3.2385.

A. O. Putri, T. Tohir, and F. A. S. Putra, “Rancang Bangun Sistem Monitoring Daya Listrik Rumah 900VA Berbasis Arduino Uno dan Node MCU ESP32 Melalui Aplikasi Blynk,” Pros. Ind. Res. Work. Natl. Semin., vol. 15, no. 1, pp. 466–472, 2024, doi: 10.35313/irwns.v15i1.6247.

D. Ramschie, A. A. Ramschie, L. Wenas, and R. Katuuk, “Implementasi Sistem Proteksi Dan Automatic Transfer Switch (ATS) Pada Pembangkit Listrik Tenaga Surya (PLTS),” Elektrik, vol. 2, no. 1, pp. 16–26, 2023.

S. Edriati, L. Husnita, E. Amri, A. A. Samudra, and N. Kamil, “Penggunaan Mit App Inventor untuk Merancang Aplikasi Pembelajaran Berbasis Android,” E-Dimas J. Pengabdi. Kpd. Masy., vol. 12, no. 4, pp. 652–657, 2021, doi: 10.26877/e-dimas.v12i4.6648.

A. T. Gaikwad, “Firebase - Overview and usage,” Int. Res. J. Mod. Eng. Technol. Sci., vol. 3, no. 12, pp. 1178–1183, 2022.